A simulation model for estimating optimum stocking density of cultured juvenile flounder Paralichthys olivaceus in relation to prey productivity

A simulation model for estimating optimum stocking density of cultured juvenile flounder Paralichthys olivaceus in relation to prey productivity
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估算养殖牙鲆幼鱼最佳放养密度与猎物生产力关系的模拟模型

DOI:
10.1016/j.fishres.2016.08.018
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发表时间:
2017
期刊:
影响因子:
2.4
通讯作者:
T. Tomiyama
T. Tomiyama
中科院分区:
农林科学2区
文献类型:
--
作者:
Y. Yamashita;Y. Kurita;H. Yamada;John M. Miller;T. Tomiyama

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确定与苗圃承载能力相关的孵化场饲养幼鱼的最佳放养密度对任何种群增加计划的成功都是重要的。为了估计可用于孵化场养殖鱼类的苗圃剩余生产力,通过扩展基于生态生理学的幼鱼生长模型,建立了日本牙鲆幼鱼种群增长模型。利用日本东北部大野湾野外采集的数据对模型参数进行了调整。该模型预测了最适放养密度,即在不因食物限制而减少同种野生幼鱼生长的情况下,将孵育饲养的幼鱼放养到海湾的最大数量。1989年大野湾总长度为89 mm的幼鱼的最佳放养密度为每25万m2 2000条。在该模型下,影响鲽鱼最佳放养密度的最重要因素是放生时鳉鱼和野生幼鱼的丰度。竞争比目鱼种类丰度对野生日本比目鱼生长的影响不太重要。
The determination of the optimum stocking density of hatchery-reared juveniles in relation to the carrying capacity of the nursery ground is important to the success of any stock enhancement programs. In order to estimate the surplus productivity of nursery grounds available to support hatchery-reared fish, a population growth model for juvenile Japanese flounderParalichthys olivaceuswas developed by extending an ecophysiology-based model on growth of juvenile fishes. Parameters of the model were adjusted using field-collected data from Ohno Bay in northeastern Japan. This model predicted the optimum stocking density, namely the maximum number of hatchery-reared juvenile Japanese flounder released into the bay without decreasing the growth of conspecific wild juveniles owing to food limitation. The optimum stocking density for juveniles of 89 mm total length was estimated to be 2000 individuals per 250,000 m2in Ohno Bay in 1989. Under the model, the most important factors affecting the optimum stocking density of Japanese flounder were the abundance of mysids and wild juveniles at the time of release. The effect of abundance of a competing flatfish species on growth of wild Japanese flounder was less important.
DOI: 10.1016/j.fishres.2016.09.011
发表时间: 2017
期刊: Fisheries Research
影响因子: 2.4
作者:
Tomiyama T;Kurita Y;Uehara S;Yamashita Y
通讯作者: Yamashita Y
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期刊: Stock Enhancement and Sea Ranching, Second edition (eds.Leber K.M.et al.) (Blackwell)
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DOI: 10.1016/j.fishres.2006.03.019
发表时间: 2006-08-01
期刊: FISHERIES RESEARCH
影响因子: 2.4
作者:
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